Round|Natural|GIA

1.09ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5232955463

Certificate GIA 5232955463

Diamond specifications and retailer prices

From $2,138 USD
HK$16,700 HKD
As of November 1, 2026
Save $2,789 USD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,039 USD at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5232955463. Listed at 23 retailers as of November 1, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.09
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5232955463
Dimensions6.49 × 6.54 × 4.09 mm
L/W Ratio1.01
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.49 mm6.54 mm1.09 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5232955463
Side View
Table 57.0%CrownGirdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,352 USD|Low: $2,074 USD|High: $4,926 USD|Avg: $3,007 USD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 17$2,138 USD
Retailer 9$2,195 USD
Retailer 19$2,301 USD
Retailer 13$2,347 USD
Retailer 1$2,352 USD
Retailer 16$2,368 USD
Retailer 11$2,520 USD
Retailer 5$2,565 USD
Retailer 14$2,570 USD
Retailer 2$2,920 USD
Retailer 6$2,970 USD
Retailer 12$2,988 USD
Retailer 7$3,070 USD
Retailer 10$3,237 USD
Retailer 15$3,285 USD
Retailer 8$3,337 USD
Retailer 18$3,443 USD
Retailer 4$3,519 USD
Retailer 3$4,926 USD

25 data points across 19 retailers

23 retailers$2,138 USD to $4,926 USD

A
Cheapest Retailer
-
$2,138 USD
HK$16,700 HKD
Retailer 2
-
$2,195 USD
₹209,044 INR
View
Price last confirmed 17 days ago
A
Retailer 3
-
$2,301 USD
View
A
Retailer 4
-
$2,347 USD
View
A
Retailer 5
-
$2,352 USD
View
Final sale: no returns
A
Retailer 6
-
$2,368 USD
A$3,642 AUD
View
Retailer 7
-
$2,520 USD
View
Price last confirmed 25 days ago
A
Retailer 8
-
$2,565 USD
View
A
Retailer 9
-
$2,570 USD
View
Retailer 10
-
$2,761 USD
View
Price last confirmed 17 days ago
Retailer 11
-
$2,867 USD
View
Price last confirmed 17 days ago
Retailer 12
-
$2,889 USD
View
Price last confirmed 25 days ago
B+
Retailer 13
-
$2,920 USD
View
B+
Retailer 14
-
$2,970 USD
View
B+
Retailer 15
-
$2,988 USD
£2,353 GBP
View
B+
Retailer 16
-
$3,070 USD
View
Retailer 17
-
$3,186 USD
View
Price last confirmed 17 days ago
Retailer 18
-
$3,237 USD
A$4,979 AUD
View
Price last confirmed 25 days ago
B+
Retailer 19
-
$3,285 USD
€3,129 EUR
View
B+
Retailer 20
-
$3,443 USD
View
B
Retailer 21
-
$3,519 USD
ZAR 56,855 ZAR
View
B
Retailer 22
-
$4,926 USD
£3,879 GBP
View
Most Expensive
NZ Jewellers
bb9facab-32af-413a-b923-8c3a57015e15 · Sep 27
$6,039 USD
View
Price last confirmed 36 days ago
22 more retailers have this diamond
Prices start from $2,138 USDSave up to $2,789 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.09ct Round
$2,138 USD